Doing full-body strength training three times a week for three months helps older adults, even those over 85, gain about 2% more muscle — and it works just as well for the very elderly as it does for...

Doing full-body strength training three times a week for three months can boost thigh muscle size by about 10–11% in older adults, even for those over 85 — showing that very old age doesn’t stop muscles from growing with exercise.

If older guys who are already active do full-body strength training three times a week for three months, they’ll get stronger legs and bigger leg muscles—even without adding extra protein to their diet.

Working out with weights twice a week for four months can help middle-aged Japanese women build a little more muscle, even as they get older.

Doing strength training three times a week for three months can help improve muscle size, strength, belly fat, cholesterol, blood sugar, and overall metabolic health in women around 69 years old who are otherwise healthy.

Even people in their 50s and 70s can get much stronger and activate their muscles better after 12 weeks of heavy weight training — age doesn’t stop them from improving.